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How to install a previous exact version of a NPM package?
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If you have to install an older version of a package, just specify it
npm install <package>@<version>
For example: npm install express@3.0.0
You can also add the --save flag to that command to add it to your package.json dependencies, or --save --save-exact f...
Why does pylint object to single character variable names?
...ed to python conventions and using pylint to make my code more pythonic, but I'm puzzled by the fact that pylint doesn't like single character variable names. I have a few loops like this:
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How does the const constructor actually work?
I've noticed it's possible to create a const constructor in Dart. In the documentation, it says that const word is used to denote something a compile time constant.
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Using Rails serialize to save hash to database
I'm try to save a hash mapping ids to a number of attempts in my rails app. My migration to the database to accommodate this new column:
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How to pick a new color for each plotted line within a figure in matplotlib?
...fy a color for each plotted line, and have each line get a distinct color. But if I run:
7 Answers
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C++: What is the size of an object of an empty class?
I was wondering what could be the size of an object of an empty class . It surely could not be 0 bytes since it should be possible to reference and point to it like any other object. But, how big is such an object?
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How to initialize a dict with keys from a list and empty value in Python?
...keys([1, 2, 3, 4])
This is actually a classmethod, so it works for dict-subclasses (like collections.defaultdict) as well. The optional second argument specifies the value to use for the keys (defaults to None.)
share
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Python string.replace regular expression [duplicate]
...r.replace() v2|v3 does not recognize regular expressions.
To perform a substitution using a regular expression, use re.sub() v2|v3.
For example:
import re
line = re.sub(
r"(?i)^.*interfaceOpDataFile.*$",
"interfaceOpDataFile %s" % fileIn,
line
)
In a ...
TINYTEXT, TEXT, MEDIUMTEXT, and LONGTEXT maximum storage sizes
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TINYTEXT | 255 (2 8−1) bytes
TEXT | 65,535 (216−1) bytes = 64 KiB
MEDIUMTEXT | 16,777,215 (224−1) bytes = 16 MiB
LONGTEXT | 4,294,967,295 (232−1) bytes = 4 GiB
Note that the number of characters that can be stored in your...
C# Ignore certificate errors?
I am getting the following error during a web service request to a remote web service:
11 Answers
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